Electrically-operated calculating-machine.



PATENTED JAN. 6, 1903.

F. 0. RIN'SGHE.

ELEOTRIGALLY OPERATED CALCULATING MACHINE.

APPLICATION FILED JUNE 12, 1901.

NO MODEL.

aze, WM;

UNITED STATES FRANK O. RINSOHE, OF ST. LOUIS, MISSOURI,

PATENT OFFICE.

ASSIGNOR TO THE UNIVERSAL RATION OF MISSOURI.

ELECTRlCALLY-OPERATED CALCULATING-MACHINE.

' SPECIFICATION forming part of Letters Patent No. 717,762, dated January 6, 1903.

Application filed June 121 1901.

To aZZ whom it may concern:

Be it known that I, FRANK O. RINSOHE, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Electrically-Operated Calculating-hrlachinespf which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a side elevational view, partly in section, of my improved electrically-operated calculating-machine. Fig. 2 is a sectional View on line 2 2, Fig.1. Fig. 3 is a top plan view of the seat. Fig. 4 is a detail sectional View on line 4 4:, Fig. 2; and Fig. 5 is a detail sectional View on line 5 5, Fig. 2.

This invention relates to a new and useful improvement in electrically-operated calculating-machines, being designed particularly as an improvement upon a calculating-machine patented to me July 24,1900, No. 654,181. In an application filed by me on or about May 9, 1901, serially numbered 59,391, I have shown and described a construction wherein a calculating-machine is driven by a motor, which motor constantly runs and is connected to the calculating-machine by a clutch mechanism which is thrown into operation by the operator, said clutch mechanism being antomatically thrown out of operation when the motor drives the calculating machine the 5 proper distance.

I have found from actual experience that operators will sometimes carelessly leave the machine with the motor running, and while the calculating-machine is not operated the motor is consuming power without doing any work. The object of this present invention is to avoid this condition,so that in the event that the operator leaves the machine the motor is automatically cut out and when the operator is operating the machine connection is made to the motor, which continues as long as the operator remains at the machine.

With these objects in view the invention consists in the arrangement, construction,

Serial No. 64,255. (No model.)

and combination of the several parts, all as will hereinafter be explained and afterward pointed out in the claims.

In the drawings I have shown a calculatingmachine of the type illustrated and described in my aforesaid patent, and in which 57 indicates what I will designate as the powershaft. This power-shaft in order to drive the adding and recording mechanisms is rotated first in one direction and then in the other, said rotations corresponding in all respects to the operation of pulling an operating-handle connected to said shaft forwardly and then releasing the handle and permitting its return to its rear position. This powershaft 57is provided with a segment A, in mesh with a segment B. A link 0 connects the segment 13 to a driven clutch-disk D, loosely mounted on a counter-shaft. Fixed to this counter-shaft and in juxtaposition to said disk is a driven clutch member E in the form of a ratchet.

F indicates a motor having a worm-gearing for driving the ratchet clutch member. In practice I preferthat this ratchet clutch member shall be constantly driven. As shown in Fig. 1, the disk E is provided with a springpressed lever G, one end of which is designed to engage the teeth of the ratchet member of the clutch, while the other end thereof cooperates with one end of a bell-crank lever H, arranged in its path. This bell-crank lever is held in its normal position by a suitable spring and connected by appropriate devices to a depressible key'I, preferably arranged on the keyboard of the calculating-machine. A brake J, in the form of a yielding finger, co operates with the projection on the disk E for arresting said disk upon the completion of one revolution thereof when the lever 'F is thrown out of engagement'with the ratchet 0 member of the clutch. The operation of this motor attachment is as follows: When an example has been set up on the keyboard, instead of reaching forward to grasp the operating-handle to pull it forward to the limit of its movement and then release said operatinghandle and waiting until it reaches its rearward or home position before setting up another example on the keyboard the operator after setting up the example simply touches the motor-key I. This key upon being depressed withdraws the end of the bell-crank lever II out of the path of the lever Gr, so that the spring cooperating with said lever G immediately becomes effective and forces the inner end of said lever in the path of one of the ratchet-teeth of the driving member of the clutch. The instant that the inner end of the lever G is caught by the driving clutch member the disk E starts to rotate and to vibrate the segments A and B. Upon the completion of one revolution of the disk E if the key I is in its normal position the protruding end of the lever G will contact with the bellcrank lever H to be disengaged from the driving clutch member. At the same time the spring-finger J will contact with the projection on the disk E and prevent momentum from carrying said disk beyond its home position. Thus it will be seen that it is only necessary for the operator to temporarily depress the key I, when the motor will become effective to drive the machine similar in all respects to one complete operation of the operating-handle.

K indicates a pawl pivoted to the frame of the machine for cooperating with the shoulder on the shank of the key I. This pawl is connected by a rod or wire L to a bell-crank lever M, pivoted at some suitable point to the framing of the machine and having one member in the path of the link 0. This bell-cran k leveris provided with a suitable spring whereby when the shaft 68 drives the link 0 upwardly the bell-crank lever is released and rises, drawing the pawl K against the shank of the key I, so that if said key I is elevated it cannot again be depressed while the pawl is under the shoulder, or if the keyI is depressed the pawl will ride over the shoulder and rest thereunder when the key I reaches its highest position. Thus the key I is locked against operation until the power-shaft has completed its operation. After the powershaft has completed its operation, as has been hereinbefore described, the stored energy in the segment 99 depresses said segment, when it is released by the detaining-pawlp, and in descending said segment will drive the link 0 against the bell-crank lever M, depressing said bell-crank lever and moving the pawl K from under the shoulder of the shank of the key I. The key I cannot again be operated until all the parts of he machine have reached a normal position. When this normal position is reached, the keyI is released and can be again depressed to connectthe motor with the power-shaft.

N indicates a link connected to the bellcrank lever and arranged at the lower end of the key-shank, which link has a slot-and-pin connection with the segment B. The function of this link is to compel the restoration of the key I when the power-shaft completes its initial rotation. This is accomplished by the engagement of the pin on the segment B with the end wallof the slot in the link N when the segment B is approaching its rearmost position, and in its final rearward movement the segment B by this link connection positively forces the key I upwardly and restores it to its home position. An operator cannot depress the key I and hold it in a depressed position, as said key is positively forced upward to its home position and through the instrumentality of mechanism before described locked in such home position until not only the motor has completed its work, but also until-the driving mechanism for the transferring devices has completed its work.

The above construction is similar in all respects to that illustrated and described in my application serially numbered 59,391.

In connection with the above I will state that a suitable cabinet or supporting-stand O is provided for the calcnlating-machine,which cabinet may have compartments for the reception of articles and in this respect be used as a piece of furniture. The cabinet is provided with a hinged seat P, arranged on the front wall thereof, which seat is provided with a shouldered brace Q. This shouldered brace passes through a slot in a hinged plate R, (see Figs. 4 and 5,) which hinged plate R is held in an outward position by springs r.

R indicates a contact-point on the hinged plates, which cotiperates with a terminal 1" of the electric circuit in which the motor is included. In order to restrain the outward movement of the hinged plate, a bolt r passes through the front wall of the cabinet and is provided with nuts on its inner end which impinge against a washer, said nuts serving as a binding-post for the wire which connects with the hinge-plate.

The circuit shown is generated in a dynamo or other source of electrical supply, (indicated at 1,) one wire, 2, of which leads to the motor. Wire 3 leading from the motor connects to the plate R, which is normally out of contact with the terminal r. Wire 4 leads from the terminal 0" back to the other side of the dynamo or source of supply of electricity. When the seat is raised, as shown in Fig. 1, the springs force the plate R outwardly and support the seat in a slightly-elevated position, the brace Q cooperating with said plate R. When an operator seats himself on the seat P, his weight moves the plate Rinwardly and causes the motor-circuit to be completed by electrically connecting the plate R and the terminal 0'. Thus as long as the operator remains seated the contact is maintained and the motor receives current. However, should the operator leave the machine the springs r immediately break contact and the motor ceases running.

I am aware that many minor changes in the arrangement, construction, and combination of the several parts of my device can be made IIO and substituted for those herein shown and described Without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Pat cut, is-

1. The combination with a calculating-machine, of a motor for operating the same, a support for said machine, a pivoted seat P, a shouldered brace Q arranged on said seat, a spring-pressed plate R, and a terminal 4" in the path of said spring-pressed plate; sub stantially as described.

2. The combination with a calculating-machine, of a motor for operating the same, an

electric circuit in which said motor is included, a pivoted seat P, a shouldered brace Q, a movable spring-pressed plate R, a binding-post connected to said plate, a contactpoint carried by the plate, and a terminal in the path of said contact-point; substantially as described.

In testimony whereof I hereunto affix my signature, in the presence of two witnesses, this 10th day of June, 1901.

FRANK O. RINSGI-IE.

Witnesses:

GEORGE BAKEWELL, RALPH KALISH. 

